NDLI: Micromagnetic Model Analysis of Planar Type Recording Write Heads for High Transfer-Rate Recording

Content Provider	IEEE Xplore Digital Library
Author	Kanai, Y. Hosokai, H. Yamakawa, K. Yoshida, K. Greaves, S.J. Muraoka, H.
Copyright Year	1965
Abstract	Planar type recording write heads were investigated using a micromagnetic analysis targeting a transfer-rate of 5 GHz. Six different planar head structures with various yoke widths, yoke heights, and coil locations were modeled. Six different conventional single-pole-type (SPT) write heads were also used for comparison. The material characteristics including the exchange constant, anisotropy energy, and Gilbert damping factor were also varied. It was found that the planar heads had a faster high-frequency response, a larger recording field, and a smaller ATE field. In the planar head, the most dominant factor for high transfer-rate recording was the coil location relative to the main pole tip and the return yoke height, while the yoke width was less important. Because the multi-turn coil can be realized with a wide yoke, it is advantageous in the planar head. With regard to the material characteristics, a small Gilbert damping factor was the most effective, while the other material characteristics did not yield significant differences.
Sponsorship	IEEE Magnetics Society
Starting Page	1723
Ending Page	1730
Page Count	8
File Size	1410322
File Format	PDF
ISSN	00189464
Volume Number	48
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic heads Coils Head Magnetization Damping Micromagnetics Windings write heads High transfer-rate recording micromagnetic simulations perpendicular magnetic recording
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Micromagnetic Model Analysis of Planar-Type Write Head Field Response and Dependence on Pole Tip, Return Yoke, and Shield Structure

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Dynamic micromagnetic studies of anisotropy effects in perpendicular write heads

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